Breadcrumb Home March 18, 2013 01:00 AM BlackRock at 25 A look at the evolution of BlackRock, which celebrated its silver anniversary this month. Tweet Share Share Email More Toggle Fullscreen Share Sources: Company filings; P&I data Even before its first acquisition in 2005, the firm experienced strong organic growth, expanding assets under management at an annual rate of 44%. Toggle Fullscreen Share From its roots as a fixed-income manager, BlackRock has steadily diversified. Toggle Fullscreen Share The firm's assets by client type continue to be dominated by institutional investors.